Soldering machine



March 21, 1933. E. H. JUGEL 1,902,703

v SOLDERING MACHINE Filed Nov.' 28, 1931 5 Sheets-Sheet 1 J11 #621501: Y 11TH. yufeZ 1 55/:

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March 21, 1933. E. H.-JUGEL.

SOLDERING MACHINE 3 Sheets-Sheet 2 Filed Nov. 28, 1951 March 21, 1933. E. JUGEL V 1,902,703

SOLDERI NG' MACHINE Filed Nov. 28, 1931 3 Sheets-Sheet 3 71: we. far:

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Patented Mar. 21, 1933 EWALID nonsr JUGEL, or GOPIEI'NGEN, GERMANY SOLDERING MAGHINE Application filed November .28, 1931; Serial No. 577,798.

This invention relates to a machine intended for the, production of longitudinal:

soldering seams and being provided, firstly, with a rotatory table supported on a stat1onary base and beinglturnable thereon in part r tion of the machine. 7

lVhile up to now the two ledges in question movements with'intervals, secondly with. a

plurality of work-piece clamping devices arranged on said table and'consisting each ofa supporting mandrel so attached to the table as to project freely above it, a pressure ledge which can be pressed downwardly 1113011 53316. mandrel, and an abutment ledge that can be shifted parallel to said first mentionedledge, and thirdly, with a heating device for heating the work-piece at its place of soldering; The gist of the invention consists therein that the lifting, the keeping lifted and the lowering of the pressure ledgeand the abutment ledge forputting the work-pieces upon the supporting mandrel without being inipeded in any way is eflected automatically and positively by means of a suitably curved cam.

The control device for moving said two ledges is, in accordance with this invention, so designed that the automatic control can be thrown out of gear and the ledges can be lowered at will also if they are still held pos itively .in theirupper position by their appertaining control cam. This is important in that case in which the workman attending to the machine requires less time for putting on the respective work-piece than has been provided for in predet-ermining the operahad been actuated by the workman attending to the machine by means of a treaclle and a set of levers, whereby the workman was trespassed upon in an increased measure, he can, with the present improved machine, apply his entire attention to the putting on of the work-piece, the useful consequence thereof being that the workman is fatigued slower and requires less time for attending to the. machine whereby his performance and, thus,

also the performance of the terially increased. I

The heating device is subdivided into several chambers in an advantageous manner,

machine is mathese chambersfbeing connected up to a gas supply pipe common to themand each of these connections being provided with a shutting-off cock and with an adjustable nozzle.

The invention is illustrated diagrammatn cally and by way of example on t-he ,accompanying drawings on which Figure 1: is a side-view of'a soldering machine designed according to this invention, there being M LII shown only two clampin 'd evices arranged,

counter to one another, an the figure showing also the control members for the pressure} ledge and the abutment ledge. Figure 2' is afront-view of the machine shown in Fig.1 s this latter figure being seenfromthe left side; Figure 3 is a plan of those parts of the control device which lie belowthe rotatory table, Figure 4 shows the lefthand hamper. the lower portion of Fig; 1, drawn to an en larged scale., Figure 5 is a side View of the heating device, and Figure 6 is a front-viewi of the same. f On the drawings,- 1 denotesa stationary base supporting therotatory table2'which e is moved in part. rotations with intervals," 5 r The upper portion of said base extends into" a, cylindrical body 3 from which project forth laterally a certain plurality,"sayeight,

of clamping devices which are all of the,

same design. Each clamping device is pro- 3 vided with a supporting mandrel 4 upon which the work-pieces for instance and I especially tin bodies.) are shifted in its longi-p tudinal direction. Above the mandrel 4 is a pressure ledge 5 which is supported ma 8 frame 6 attached to the body 3 and is ,mov-f able relatively to the mandrel. The ledge is v controlled by a. lever 8 hinged at the point 7 to the frame16; the free end of said lever is provided witha roll 9 bearing upon a stationaryannular cam 10 provided uponthe top face of the socle 1, that is to say, upon the upper portion thereof which extends through the. cylindrical body 3 In said frame 6 is alsosupported the abutment ledge 11 which can be moved parallel to the ledge 6 in such a mannerthat it can be moved up wardly by the ledge 5 when this ledge is moved-upwardly, and. can, besides, be moved, upwardly independently oftheledg'e 5 and the rotatory table 2. At the lower-end of-v said rod is a roll 16, and below the same is a bracket 17 which is aflixed to the base 1 and holds at its free end a bell-crank lever having a short horizontal arm 18 and a long vertical arm 19, the two arms forming an angle of about 90. On the free end of the arm 18 is a member 20 upon which the roll I 20 16 of the rod 15 can run.

-B'elow the bracket 17 extends a smaller bracket 21 also extending forth from the base 1, and having horizontal slots 24 in which the axle 23 of a roll 22 can be shifted. This 25 roll serves as guide for a chain 25, the upper end of which is aiiixed to one armof a small bell-crank lever 26 hinged to the base 1, and

the lower end of which is connected. with the arm 19'of thebellecrank lever 18, 19 by the'intermediary of internally and differently threaded sockets 25 and 25", of which thelatter is hinged to said lever arm 19,the two sockets being connected with one another by a threaded member 25, one half of- 'which vhas a right-handed thread and the other half of which has a left-handed thread, both halves in correspondence with the sockets, so that by turning said intermediate member 25 the angular position of the bellcrank lever 18, 19 can be adjusted The other arm of said small bell-crank lever 26 slides upon a cam disk 27 driven by the main drive of the machine by the intermediaryof pairs of cog-wheels (not shown). Y

"In the bracket 21 is vertically guided a sliding member 28, the upper end of which has a groove located opposite the roll 22 and receiving in it the adjacent portion'of this roll.; The uppermost end of said member 28 is stepped, including an oblique portion on each side of said groove, as shown at 29, and these oblique faces, as well as the adjacent vertical portions righthand and lefthand from said slot, co-operate with the axle 23 of the roll 22, as is more fully dealt with hereinafter.

The bell-crank lever 18, 19 is subjected to the action of a helical tensile spring 30 by which the chain 25 is continually held under tension, so that the axle 23 ofthe roll 22 is held continually in contact with the abovementioned faces29 located righthand. and lefthand from the vertical slot in the'uppermost end of the sliding member 28.

' 31 denotes a third bracket which also extends forth from the base 1 and holds at its free end an one-armed lever 32 which is movably connected with the sliding member 28, and this lever 32 is connected by a rod 34 with a treadle 33 hinged to the base and subjected to the pull of a helical tensile spring 35 by which said treadle is normally held lifted. s

The heating device is attached to the frame 6 and can be adjusted at the same in several oblique positions in correspondence with the work-pieces to be soldered. In the constructional form shown by way of example in Figs. 5 and 6 'the heating device has three chambers 36,37, 38 which communicate with a supply pipe 39 which is common to them. The mouth-pieces 36 37 and 38 of said chambers have outlet apertures for the gasair-mixtureused as heating fluid. The supply of the air to the individual chambers can be regulated by nozzles 40,41, and 42. 43 and 44 are shuttingoff cocks which are so inserted into the supply pipe 39 that first the chamber 38 can be shut off and then the chamber 37, always as suited to the length of the workpieces to be soldered so as to accommodate v" the length of the solderingflame to the length of the respective pieces.

The pipe 39 is connected by'a flexible pipe 45 with the distributing ring 47 of a gas holder 48. Said ring is turnable togetherwith the table 2,'and the connectionbetween it and the flexible pipe 45 is established by means of a shutting-off cock 46. v v

Owing to the above-described particular arrangement andcombination of the parts constituting the heating device an economical 7 consumption of the gas, always in correspondence with the length of the work-pieces to be soldered, is warranted. a

The operation of the devices shown and described-is as follows:

The rotatory table 2 with its eight (or less the sliding rod 15 running upon the face 2Ov whereby the lever 8'is lifted from the appertaining cam path 10 and the pressure ledge 5 is moved upwardly together with the abutment ledge 11. This is the point of time, at

which the work-piece to be soldered is put upon the supporting .mandrel, while at the same time the part movement of the table 2 is stopped. A certain definite period of time is predetermined for putting the work-piece upon the mandrel. Thereafter the ledges 5 and 11 are automatically lowered and another 7 part rotation of the table commences. Lowering the ledges is effected by the suitably shaped cam disk 27 (which is driven by the main drive of the machine) actuating the bell crank lever 26 in such a manner that the chain 25 can yield and the bell-crank lever- 18, 19 is turned'by means of the spring .30, whereby the roll 16 leaves its support and the ledges 5 and 11 can now be moved down-' wardly by their COIIIPIGSSlWE springs.

If the workman has required less time for shifting the work-piece, upon the supporting mandrel than has been predetermined for that phase, he is in theposition to lower the ledges 5 and 11 in spite of the automatic control. For this purpose the workman depresses the treadle 33, counter to the action of the spring 35, whereby the lever 32 is turned and the sliding member-28 is drawn downwardly, until its oblique faces 29 contact with the axle 23 of the roll 22, in conse- V quence whereof this roll and the members 25, 25 and 25 can give way under the action of the spring 30, that is to say, the bell-crank lever 18, 19 will be'turned by this spring and the ledge 20 will be lowered so that the slidable rod can sink together with the ledges 5 and 11. When thereafter the treadle 33 is released, the members just spoken of assume their former, i. e. normal, positions.

, I claim:

1. A machine for the production of longitudinal soldering seams, comprising, in combination, a stationary base and a rotatory table adapted to perform part rotations in" intervals; a plurality of clamping devices attached to said table, each of these devices comprising a supporting mandrel projecting freely over the table, a pressure ledge adapted to be pressed against said mandrel from above, an abutment ledge adapted to be shifted parallel to said pressure ledge, and a heating device so located as to beadapted to heat the place of soldering of the workpiece; a cam for the automatic and positive control of said ledges, a bell-crank lever (26) so arranged as to be adapted to be actuated by said cam; a shiftable roll (22) and a chain (25) connected at one end with said lever and running over said roll; another bell-crank lever (18, 19), one arm of which is connected with the other endof said chain; a supporting member attach-ed to the'other arm of said other bell-crank lever; arslidable rod (15) carried by'said supporting member,

- and a lever (8) hinged to said rod, this lever carrying said pressure ledge, substantially as set forth.

2. A machine for the production of longitudinal soldering seams, comprising, in combination, a stationary base and a rotatory table adapted to perform part rotations in intervals; a plurality of clamping devices attached to said table, each of these devices comprising a supporting mandrel projecting freely over the table, a pressure ledge adapted to be pressed against said mandrel item I i above, an abutment ledge adapted to be shifted parallel to said pressure ledge, and i a heating-deviceso located'as to bea'dapted to heat the place of soldering of the workpiece a cam for the automatic and positive control of said' l-edges; a bell crank lever (26) so arranged as to be 1 adapted to beam tuated by said cam; a bracket "(24) located below said lever andhavinga pair of oppositely-located horizontal slots; an axle (23) shiftable in said slots and a roll (22) secured to said axle; a vertically movable member (28), the upper end of which is stepped and designed as cam (29) so arranged relatively to said axle as to be adapted to co-op-erate with the same; a treadle (33) and means connecting it with said vertically movable member; a chain con nected at one end with said lever and running over said shiftable roll; another bellcrank lever (18, 19), one armfof'which is.

connected with the other end of said chain; a spring connected with said other bellcrank lever in such a manner as to subject said chain to'tension; a supporting member (20) attached to the other arm of said other.

bell-crank lever; a slidabl-e rod (15) carried by that supporting member, and a lever (8) heat the place of soldering of the work-piece and comprising a plurality of individual chambers (86,37, 38), air regulating nozzles (40, 41, 42) pertaining to said chambers, Y

a common gas supply pipe for all chambers, and'means for interrupting the communication' betweensaid pipe and that or. those or the said chambers which is, or are, located nearest'to the axis of rotation of thesaid table; a cam for the automatic and positive control'of said ledges; and means so arranged as to be adapted to bemoved by said cam and to transmit the movements to the said ledges, substantially as set forth.

4. In a machine for the production of longitudinal soldering seams, in. combination with a stationary base,a rotatory table adapt ed to perform part rotations in intervals, a

plurality of clamping devicesattached to said table and comprising each a supporting mandrel projecting freely over the table, a

pressure ledge adapted to be pressed against said mandrel from above, an abutment ledge, and a heating device adapted to heat the 7 place of soldering; further, with a cam for the automatic and positive control of said ledges, and with means adapted to be moved by said cam and to transmit the movements to the said ledges: means for throwing the before-mentioned motion-transmitting means out of gear at will.

In testimony whereof I af fix my signature.

EWALD HORST J UGEL. 

